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Data feature code

Request for information – FOI133351

Thank you for your e-mail of 21 January 2013, requesting:

The sole purpose for my inquiry to the Ordnance Survey was to ascertain whether the "dashed line" on the Ordnance Survey map in question, historical or otherwise, portrayed a physical (pertaining to nature or natural production) feature at this specific location, being, xxxxxx (part Parcel number xxx).

You have confirmed that a feature is in existence due to the very fact that there is a rise and fall/less 0.3 meters in height in the surface level, being totally visible at this site.

I am aware that "dashed lines" on OS current mapping generally depict the metaled road edge kerbing.

On reading the literature on this subject a Digital Map Feature Coding (also known as Layering) should be recorded on this particular feature due to this feature now established to be in existence.

Question: Is there a feature code listed for the above?

Ordnance Survey does hold some of the information to respond to your request.

Firstly, regarding your statement: ‘You have confirmed that a feature is in existence due to the very fact that there is a rise and fall/less 0.3 meters in height in the surface level, being totally visible at this site’ – we clarify that the feature shown in the large scale data is shown because there is a corresponding real world feature in existence and it is shown as a non-obstructing feature, because it is not an obstruction at ground level, and is therefore less than 0.3m in height.

Regarding your information request, Ordnance Survey no longer represents feature codes in our large scale data, but under the duty to provide advice and assistance (Section 16 of the FOIA) we can advise that we detail ‘forms and functions’ against certain features.

The edge of the road to which you refer is represented by a feature that has a baseform of ‘built non obstruction or limit’ with a function of ‘bounding public road’ and a feature group of ‘Topography+Line+Normal’. These baseforms and functions are only found in our base data.

In the OS MasterMap® product, roadside is a feature type of topographic line with a physical presence of edge/limit. This information can be found in our OS MasterMap real-world object catalogue PDF.

Internal review
Your enquiry has been processed according to the Freedom of Information Act (FOIA) 2000. If you are unhappy with our response, you may request an internal review with our FOI Internal Review Officer, by contacting them as follows:

FOI Internal Review Officer
Customer Service Centre
Ordnance Survey
Adanac Drive
SO16 0AS

E-mail: foi@ordnancesurvey.co.uk

Please include the reference number above. You may request an internal review where you believe Ordnance Survey has:

  • Failed to respond to your request within the time limits (normally 20 working days)
  • Failed to tell you whether or not we hold the information
  • Failed to provide the information you have requested
  • Failed to explain the reasons for refusing a request
  • Failed to correctly apply an exemption or exception

The FOI Internal Review Officer will not have been involved in the original decision. They will conduct an independent internal review and will inform you of the outcome of the review normally within 20 working days, but exceptionally within 40 working days, in line with the Information Commissioner’s guidance.

The FOI Internal Review Officer will either: uphold the original decision, provide an additional explanation of the exemption/s applied or release further information, if it is considered appropriate to do so.

Appeal to Information Commissioner's Office (ICO)
If, following the outcome of the internal review you remain unhappy with our response, you may raise an appeal with the Information Commissioner’s Office at:

The Case Reception Unit
Customer Service Team
The Information Commissioner’s Office
Wycliffe House
Water Lane

E-mail: mail@ico.gsi.gov.uk

Telephone helpline: 0303 123 1113 or 01625 545745 for advice, Monday to Friday.

Thank you for your enquiry.

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